Motorola CP160 Detailed Service Manual page 141

UHF1 PCB 8486635Z03-O Schematic Diagrams
USWB +
5V 5T 5R 3V
USWB+ 5V 5T 5R
3V
CONTROLLER
SPI_DATA_OUT
TX_EN A
PWR_SET
DEMOD
BW_SEL
RSSI
5V
5V
MOD_OUT MOD_IN
16_8_MHZ 16_8_MHZ
SYNTH_UHF_R1
SYNTH_CS SYNTH_CS
SPI_CLK SPI_CLK
SPI_DATA_OUT
LOCK LOCK
UHF R1
5V
5V
RX_BE
DEMOD
BW_SEL IF_IN
RSSI
5R
3V
5R
3V
PRESC PRESC
VCO_UHF_R1
V_STEER V_STEER
V_SF V_SF
VCO_MOD VCO_MOD
TRB TRB
5R
5R
RX_FE_UHF_R1
IF_OUT RX_IN
RX_INJ
3V
3V
RX_INJ
TX_INJ
UHF1 Radio Circuit Block Diagram
4-5
USWB+ 5T
5T
USWB
TX_ENA
TX_UHF_R1
PWR_SET
RX_OUT
TX_INJ